, falling down a bottom ##less pit or running out of time ) will cost sonic a life regardless of rings or other protection . the game is divided into six zones ( green hill , marble , spring yard , labyrinth , star light , and scrap brain ) , each with its own visual style and enemies . a player must navigate through each zone ( subdivided into three acts ) to progress . at the end of each zone ' s third act , the player confronts dr . robot ##nik ( who pilots a different vehicle each time ) in a boss fight . after the sixth zone , the player continues directly to the final zone for a last encounter with robot ##nik
, falling down a bottomless pit or running out of time ) will cost sonic a life regardless of rings or other protection. the game is divided into six zones ( green hill, marble, spring yard, labyrinth, star light, and scrap brain ), each with its own visual style and enemies. a player must navigate through each zone ( subdivided into three acts ) to progress. at the end of each zone's third act, the player confronts dr. robotnik ( who pilots a different vehicle each time ) in a boss fight. after the sixth zone, the player continues directly to the final zone for a last encounter with robotnik